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Gluconeogenesis
Important enzymes, substrates and products of gluconeogenesis
| Enzymes | Products | Substrates |
|---|---|---|
| Pyruvate Carboxylase | Pyruvate --> Oxaloacetate | ATP + HCO3 ------> ADP + Pi Biotin |
| Phosphoenolpyruvate Carboxykinase (PEPCK) | Oxaloacetate --> Phosphoenolpyruvate (PEP) | GTP --> GDP + CO2 |
| Phosphoglycerate Kinase | 3-phosphoglycerate --> 1,3 Bisphosphoglycerate | ATP --> ADP |
| Glyceraldehyde 3-phosphate Dehydrogenase | 1,3 Bisphosphoglycerate --> Glyceraldehyde 3-phosphate | NADH --> NAD+ |
| Triose Phosphate Isomerase | Glyceraldehyde 3-phosphate --> Dihydroxyacetone Phosphate | (isomerization) |
| Aldolase | Glyceraldehyde 3-phosphate + Dihydroxyacetone Phosphate --> F-1,6-bisP | (none) |
| Fructose 1,6-bisphosphatase | F-1,6-bisP --> F-6-P | H20 --> Pi |
| Phosphoglucose Isomerase | F-6-P --> G-6-P | (isomerization) |
| Glucose 6-phosphatases | G-6-P --> Glucose | H20 --> Pi |